西北林学院学报2024，Vol.39Issue(4)：61-70,10.DOI:10.3969/j.issn.1001-7461.2024.04.08
关帝山不同海拔天然次生杨桦林地表昆虫群落结构及多样性特征分析
Above-Ground Insect Community Structure and Diversity in Natural Secondary Poplar Birch Forest at Different Altitudes in Guandi Mountain
摘要
Abstract
As an important component of forest community ecosystem,above-ground insects can accelerate litter decomposition and soil ecological processes.In order to understand the composition and diversity of insect communities on the ground and to explore the environmental factors affecting the spatial distribution pattern of insect communities in the Guandi Mountain forest region,the study was conducted in the poplar-birch forest,a typical broad-leaved forest ecosystem in the region,four habitats ranging from 1 600 to 2 200 m above altitude level were set up.Two systematic surveys of above-ground insects were carried out in Ju-ly-August 2022 by means of Babbitt pot traps,single factor analysis of variance(ANOVA)and redundancy analysis were used to determine the impact of environmental factors on insect diversity at different alti-tudes.The results showed that 1)a total of 2 449 insects were collected,belonging to 30 families and 64 species of 7 orders.Among them,Carabidae and Formicidae were the dominant species.2)The composition of above-ground insects of different altitudes was obviously different,and the number of individuals and species decreased with the elevation,the similarity coefficient of above-ground insects communities at dif-ferent altitudes showed that the species similarity between adjacent two altitudes was high.3)The Shan-non diversity index,Pielou evenness index and Margalef richness index were higher in the low altitude,but there was no significant difference in Pielou evenness index among different altitudes.4)Pearson correla-tion coefficient analysis showed that soil temperature,water and porosity were the main environmental fac-tors affecting insect species diversity.Further redundancy analysis showed that temperature was the most important factor affecting the distribution of insect communities on the ground.This study is an important supplement to the study on the ecosystem of the Guandi Mountain and provides a theoretical basis for the protection of above-ground insects.关键词
地表昆虫/海拔梯度/土壤性质/多样性/相似性Key words
above-ground insect/elevation gradient/soil property/diversity/similarity分类
农业科技引用本文复制引用
李蓉姣,董江海,刘磊,范世明,高瑞贺..关帝山不同海拔天然次生杨桦林地表昆虫群落结构及多样性特征分析[J].西北林学院学报,2024,39(4):61-70,10.基金项目
山西省回国留学人员资助项目(2023-087) （2023-087）
山西省应用基础研究计划青年科技研究基金项目(20210302124062) （20210302124062）
山西省高等学校科技创新项目(2021L128) （2021L128）
山西农业大学科技创新基金项目(2017YJ20). （2017YJ20）
